Source : Webster's Revised Unabridged Dictionary (1913)

King Charles spaniel \King Charles span"iel\ (Zo["o]l.)
   A variety of small pet dogs, having, drooping ears, a high,
   dome-shaped forehead, pug nose, large, prominent eyes, and
   long, wavy hair. The color is usually black and tan.

Source : WordNet®

King Charles spaniel
     n : a toy English spaniel with a black-and-tan coat; named after
         Charles II who popularized it